I took advantage of the last warm-ish day for a while to straighten out my airdam. I attached it originally with the bumper cover off the car, so it was significantly lower at the sides, just in front of the wheels, than in front, and was scraping on the sides a lot. I lowered the front an inch and raised the sides, for 3 1/2" clearance all around.
I found 40' of lawn edging on clearance at Walmart for $7.00 just before Christmas, so I figure I'll put some side skirts on it as well. Then rear wheel skirts, then a base plate.